Re: Benchmarks: Linux Kernel RAID vs a Hardware RAID setup

[Richard Scobie <richard@xxxxxxxxxxx>]

Keld Jørn Simonsen wrote:

> I would actually welcome more tests with specific user profiles, like
> many small reads and writes for database  use, and concurrent random
> reading and writing to simulate the load on a server. What bonnie++ is
> reporting is only equential IO. This is important on work stations, but
> actually not on servers.

The following is from the Bonnie++ man page:

"There  are  two  sections  to the program's operations. The first is to 
test the IO throughput in a fashion that is designed to  simulate  some 
types of database applications. The second is to test creation, reading 
and deleting many small files in a fashion similar to the usage patterns 
of programs such as Squid or INN."

So I guess the author thinks it's valid for more than sequential I/O.

In any case, while we may be in a minority, Justin, I and a few others 
are interested in sequential I/O, as we build servers required to read 
and write multiple streams of uncompressed SD and HD video in realtime.

Regards,

Richard
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